I have found from personal experiences that *Moderate* movement of the affected muscle resolves tightness and stiffness. I had a locked up left calf for nearly 2 and a half months. It didn't change at all, until I got up off my *ss and began 5-10 minutes of treadmill walking and doing very light weight squats, and very careful stretching. And even then, it took a handful of iterations before I started feeling a complete release of the tightness. I also had a "miracle" event happen one evening when my calf was simply in pain and locked up tight. I juiced some Pomegranate (whole), Cucumber, Leafy greens, Green and Red Pepper, and Carrots, and within about 15 minutes [Edit: actually it was about three minutes] of drinking it, I had complete and total pain and stiffness relief. The only thing I had added differently to my juice was the Pomegranate that night, and the drink was violently bitter. Extremely, extremely bitter, i assume from the pomegranate "white" skin that i included. Don't believe thats possible? Read this: "The volunteers rested and did not drink any fluids. Then their tibial nerve was zapped again. This time, though, as soon as the toe cramps began, each man downed about 2.5 ounces of ... pickle juice, strained from a jar of ordinary Vlasic dills. The reaction, for some, was rapid. Within about 85 seconds, the men drinking pickle juice stopped cramping. But the cramps continued unabated in the men drinking water. Pickle juice had “relieved a cramp 45 percent faster” than drinking no fluids and about 37 percent faster than water"I don't know if it was the cucumber (similar in family to the pickle) or the Pomegranate, but there's magic in those veggies...BFSB